Help me choose
A stronger Pool Express option
Dolphin Explorer E25 and Dolphin Nautilus CC are compared feature by feature below. For a stronger Pool Express option, consider Dolphin Cayman. Inground and above-ground pools up to 40 ft that need floor and wall cleaning.
Explorer
Dolphin Explorer E25
Inground pools up to 50 ft that need floor and wall cleaning.
Nautilus
Dolphin Nautilus CC
Inground and above-ground pools up to 33 ft that need floor and wall cleaning.
What we recommend instead
Dolphin Cayman
Inground and above-ground pools up to 40 ft that need floor and wall cleaning.
$1,079
Buy Dolphin CaymanDolphin Explorer E25 or Dolphin Nautilus CC: our take
Dolphin Explorer E25 and Dolphin Nautilus CC are compared on pool fit, cleaning reach, debris handling, controls and ownership details. The recommendation is based on the job the robot must do—not a simple feature count.
Pool fit and cleaning reach
Dolphin Explorer E25 is intended for inground pools, while Dolphin Nautilus CC is intended for inground and above-ground pools. Dolphin Explorer E25 is rated for pools up to 50 ft; Dolphin Nautilus CC is rated up to 33 ft. Each cleans floor and walls, so coverage alone does not separate them. Dolphin Nautilus CC's documented cleaning system includes 1 active brush.
Filtration and debris
Dolphin Nautilus CC has documented included filtration—Basket—while the other model's included media is not fully published. Dolphin Nautilus CC has the better documented path for bulky leaves and larger debris.
Controls and day-to-day ownership
Dolphin Explorer E25 provides smartphone control; Dolphin Nautilus CC provides one-touch starts and power-supply controls.
Price, warranty and the decision
Dolphin Explorer E25 is listed at $899 and Dolphin Nautilus CC at $699; Dolphin Nautilus CC is $200 less. Each lists a 2-year manufacturer warranty. Dolphin Explorer E25 and Dolphin Nautilus CC each have a specific fit, but neither is the Pool Express pick for this job. Our better alternative is Dolphin Cayman. Inground and above-ground pools up to 40 ft that need floor and wall cleaning.
Feature check: what each robot actually has
A green check means the feature is documented as included. A red X means it is documented as absent. A dash means the source does not make the feature clear.
| Feature | Dolphin Explorer E25 | Dolphin Nautilus CC |
|---|---|---|
| Cleans the pool floor | Yes | Yes |
| Climbs and cleans walls | Yes | Yes |
| Scrubs the waterline | No | No |
| Fine-debris filter included | No | No |
| Large-debris filter | No | YesEdge |
| Automatic scheduling | Not listed | No |
| Smartphone app | YesEdge | No |
| Anti-tangle swivel | Not listed | No |
| 3-year warranty | No | No |
| No recharging between cycles | Not listed | Yes |
| Built-in UV-C water treatment | No | No |
Unknown is not treated as “no.” Specifications come from the product pages, current catalog records and manufacturer material collected for this site.
Where Dolphin Explorer E25 stands out
Dolphin Explorer E25 is the better fit for pools up to 50 ft.
- Adds smartphone control
- Is rated for pools up to 50 ft
Where Dolphin Nautilus CC stands out
Dolphin Nautilus CC is the better fit for shoppers prioritizing the lower $699 starting price.
- Includes a large-debris bin or bag for leaves
- Is listed $200 lower
Dolphin Explorer E25 vs Dolphin Nautilus CC specifications
Use pool fit first. Price and app control do not make up for a robot that cannot cover the length or surfaces you need cleaned.
| Specification | Dolphin Explorer E25 | Dolphin Nautilus CC |
|---|---|---|
| Best fit | Inground pools up to 50 ft that need floor and wall cleaning. | Inground and above-ground pools up to 33 ft that need floor and wall cleaning. |
| Starting price | $899 | $699 |
| Pool type | Inground | Inground, Above-ground |
| Maximum pool length | Up to 50 ft | Up to 33 ft |
| Cleaning coverage | Floor, Walls | Floor, Walls |
| Power | Not listed | Corded |
| Filtration | Not listed | Basket |
| Scheduling | Not listed | One-touch start |
| App and remote | App control | Power-supply controls |
| Cable | Not listed | 50 ft |
| Robot weight | Not listed | Not listed |
| Warranty | 2 years | 2 years |
Consider the stronger Pool Express option
Dolphin Explorer E25 and Dolphin Nautilus CC are compared feature by feature below. For a stronger Pool Express option, consider Dolphin Cayman. Inground and above-ground pools up to 40 ft that need floor and wall cleaning.
More robotic pool cleaner comparisons
Keep comparing without rebuilding the same specification table yourself.
Clear UV vs Clear S
Pool Express pick: Clear UV
Dolphin Quantum vs Clear S
Pool Express pick: Dolphin Quantum
Dolphin Premier vs Dolphin Sigma
Pool Express pick: Dolphin Premier
Dolphin Premier vs Dolphin Quantum
Pool Express pick: Dolphin Quantum
Dolphin Sigma vs Dolphin Quantum
Pool Express pick: Dolphin Quantum
Dolphin Cayman vs Dolphin Escape
Pool Express pick: Dolphin Cayman